1979 Oldsmobile Cutlass NO BRAKES PRESSURE WHEN ENGINE RUNN

Tiny
BILLY SKINNER
  • MEMBER
  • 1979 OLDSMOBILE CUTLASS
Brakes problem
1979 Oldsmobile Cutlass Automatic 120, 00 miles

I was told that I needed a mater cylinder which I changed out and I was also told that I had to bleed the lines which I did. When engine is off I have pressure but once the engine is running I have no pressure whatsoever.
Friday, February 1st, 2008 AT 5:08 PM

1 Reply

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
You still have air in the system and or your porportioning valve may be stuck.
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Friday, February 1st, 2008 AT 6:05 PM

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